181999636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^2$

素因数の和:309

約数の個数: 72

約数和(自身を含む): 407855616

約数和(自身を除く): 225855980

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 127, 182, 217, 254, 364, 403, 434, 508, 806, 868, 889, 1612, 1651, 1778, 2821, 3302, 3556, 3937, 5642, 6604, 7874, 11284, 11557, 15748, 16129, 23114, 27559, 32258, 46228, 51181, 55118, 64516, 102362, 110236, 112903, 204724, 209677, 225806, 358267, 419354, 451612, 499999, 716534, 838708, 999998, 1433068, 1467739, 1999996, 2935478, 3499993, 5870956, 6499987, 6999986, 12999974, 13999972, 25999948, 45499909, 90999818, 181999636]

約数ペア:

[(1, 181999636), (2, 90999818), (4, 45499909), (7, 25999948), (13, 13999972), (14, 12999974), (26, 6999986), (28, 6499987), (31, 5870956), (52, 3499993), (62, 2935478), (91, 1999996), (124, 1467739), (127, 1433068), (182, 999998), (217, 838708), (254, 716534), (364, 499999), (403, 451612), (434, 419354), (508, 358267), (806, 225806), (868, 209677), (889, 204724), (1612, 112903), (1651, 110236), (1778, 102362), (2821, 64516), (3302, 55118), (3556, 51181), (3937, 46228), (5642, 32258), (6604, 27559), (7874, 23114), (11284, 16129), (11557, 15748)]